So pool did not start as usual this morning. Checked and my intellichlor shows red light by flow.checked all skimmers and basket filter, nothing blocking it. Turn system to service and proceeded to backwash, rinse - no problem. Restart system via service mode. Everything running fine. I switched to auto mode and with in seconds the pump stops and red flow light comes on. Switched back to serviceMode . Restart everything. And all is working fine. Let run alittle while and switch back to auto, pump turns off and red light back. Any suggestions would be apprecited.